Vents In Crawlspaces
Section Progress
0% Complete
- Crawlspaces must be provided with vents to the exterior of the building. The minimum net area of ventilation openings must comply with Section R408 of the 2012 International Residential Code for One-and Two-Family Dwellings.
- The soil in crawlspaces must be covered with a continuous layer of minimum 6-mil polyethylene soil gas retarder.
- The ground cover must be lapped a minimum of 12 inches at joints and must extend to all foundation walls enclosing the crawlspace area.
- 32 ILAC 422.160 (e)(1)(2)